Abstract
Improving the strength of an object by surface treatment inevitably trades off strength and ductility, and also reduces toughness. In this study, carbon steel was treated by a surface modification technique, referred to as multifunction cavitation (MFC), and the improvement of strength and toughness was investigated. Peening marks, pits, and rust were observed in the MFC-treated carbon steel as the processing time increased. In addition, the surface roughness of MFC-treated carbon steel increased and the surface potential decreased. Hardness and compressive residual stress increased most under the condition of processing time of 5 min. Charpy impact tests were performed to evaluate toughness. The transition region between the untreated material and the MFC-treated material after the Charpy impact tests was 280–380 K. The MFC-treated material had a lower transition temperature and higher absorption energy than the untreated material, indicating that MFC treatment was effective in improving toughness.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
